Populate versions on individual nodes in sync model and native bookmark model.

sync/test/null_directory_change_delegate.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/test/null_directory_change_delegate.h"
 
 namespace syncer {
 namespace syncable {
 
 NullDirectoryChangeDelegate::~NullDirectoryChangeDelegate() {}
 
 void NullDirectoryChangeDelegate::HandleCalculateChangesChangeEventFromSyncApi(
     const ImmutableWriteTransactionInfo& write_transaction_info,
-    BaseTransaction* trans) {}
+    BaseTransaction* trans,
+    std::vector<int64>* entry_changed) {
+  for (EntryKernelMutationMap::const_iterator it =
+          write_transaction_info.Get().mutations.Get().begin();
+      it != write_transaction_info.Get().mutations.Get().end(); ++it) {
+    entry_changed->push_back(it->first);
+  }
+}
 
 void NullDirectoryChangeDelegate::HandleCalculateChangesChangeEventFromSyncer(
     const ImmutableWriteTransactionInfo& write_transaction_info,
-    BaseTransaction* trans) {}
+    BaseTransaction* trans,
+    std::vector<int64>* entry_changed) {
+  for (EntryKernelMutationMap::const_iterator it =
+          write_transaction_info.Get().mutations.Get().begin();
+      it != write_transaction_info.Get().mutations.Get().end(); ++it) {
+    entry_changed->push_back(it->first);
+  }
+}
 
-ModelTypeSet
-    NullDirectoryChangeDelegate::HandleTransactionEndingChangeEvent(
-        const ImmutableWriteTransactionInfo& write_transaction_info,
-        BaseTransaction* trans) {
+ModelTypeSet NullDirectoryChangeDelegate::HandleTransactionEndingChangeEvent(
+    const ImmutableWriteTransactionInfo& write_transaction_info,
+    BaseTransaction* trans) {
   return ModelTypeSet();
 }
 
 void NullDirectoryChangeDelegate::HandleTransactionCompleteChangeEvent(
     ModelTypeSet models_with_changes) {}
 
 }  // namespace syncable
 }  // namespace syncer